20113321221331 has 8 divisors (see below), whose sum is σ = 21660831071600. Its totient is φ = 18565858698912.

The previous prime is 20113321221313. The next prime is 20113321221377. The reversal of 20113321221331 is 13312212331102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20113321221331 - 2¹⁵ = 20113321188563 is a prime.

It is a super-2 number, since 2×20113321221331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20113321221296 and 20113321221305.

It is not an unprimeable number, because it can be changed into a prime (20113321222331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10946856 + ... + 12651493.

It is an arithmetic number, because the mean of its divisors is an integer number (2707603883950).

Almost surely, 2^{20113321221331} is an apocalyptic number.

20113321221331 is a deficient number, since it is larger than the sum of its proper divisors (1547509850269).

20113321221331 is a wasteful number, since it uses less digits than its factorization.

20113321221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23663925.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20113321221331 its reverse (13312212331102), we get a palindrome (33425533552433).

The spelling of 20113321221331 in words is "twenty trillion, one hundred thirteen billion, three hundred twenty-one million, two hundred twenty-one thousand, three hundred thirty-one".